@article{GMJ_2001__8_4_49980,
     author = {Kiguradze, I. and P\r{u}\v{z}a, B. and Stavroulakis, I.P.},
     title = {On singular boundary value problems for functional-differential equations of higher order.},
     journal = {Georgian Mathematical Journal},
     pages = {791--814},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2001},
     zbl = {1011.34056},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2001__8_4_49980/}
}